Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“plus Sicherheit und Privatsphäre”
Google Play · 5/5 · 2026-08-11

Checks (re-run on this request)

✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
✓ Public transparency log — Sigstore Rekor log index 2683442043

Proof data

Record hash (SHA-256): 0b5ba90a090025e00a4a4502aaa7a6ad99505ebcb98b927244cd29ff81e5868d
Signature (Ed25519, base64): wq9/Ea4Cqkg/GuH29hcq0WRsEZDmPjqYDpWvE7J8kh/e/cgClQwvlmOhfQRCldCxS41gFOQPZiMQb8l7NfJ/Cg==
Merkle root: fe94c04c20b3266750f4dbc6a3653f61780d445d01f1545120f6c37d36d71ff0
Merkle path: ["0b56ae33905aeafe5837a6a0c33ae13fe5f768f11ab609b0dfac0e05ea987ef2","ef4daddfedfee4fdf7a8e4784adcc9b64d4465c913d746cf2f0301213895f816","1b66b0e67e556aa8367e719da3fa5d363090676c62ee41a49e00ec443f6609a6","adcb2aad646f07890bde76417088ca5ef99dc30253fc7f8b95e5fabf3ade17db","324f0516c455409cb18147213b0901086d1e777802ebeee913d6dc7d462d018c","e4b5813926e9249c5b9f6b77da11c61f3600588ea170979c90821f023b82f6d6","101b76565bc09c83567eaa5a65e69ea099d1c6f419c820127bfd2cf23c867d7b","db803be57e862c41417fba52a1b98257e6fd8d3a76624e1925d0a1e89ef91271","b5e553a621483e38c6ee2eda17ccd5bf8cc35d20b92ba4b9010aec3682b2050b","2214f33143248d386647a10f66f5d8639fe6d9cb865bc62c9cd75244702ecbdf","6f6f44fb95c9a6b018587feda9e707b596e7c0a48a9e725db1909517ea014464","01463551ea824d36b27f0920f232eed6a517cb49211a3096e69f375a94ed461c","93f8a73d581d5a577779ea4e3a5ec90a9403a343dd763f3df4c580b86533a7c2","9764411b9036157d4f3622be5a17f6276b575f16c417f7b08dc6150c7a3e326a","360c1b8c241372c87353049db4729fbb13151e7694db18a4b9ba21ddb2c2ab4e"]
Anchored: 2026-09-02
Public log entry: search.sigstore.dev, log index 2683442043 · entry 108e9186e8c5677af84b…
Expected log hash: b32555b0c0ed6ab3025d809fd17065d5a2118facd0208ca397bd6fef92debff6 The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.
Canonical record: {"dataset_version":"v1788325010619","kind":"published-quote","locale":"de","page":"product:proton/proton-calendar/de","quote":"plus Sicherheit und Privatsphäre","rating":5,"review_date":"2026-08-11","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.calendar","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (fe94c04c20b3…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.